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Field Report from Mars: Sol 3902 - January 15, 2015

Larry Crumpler • January 22, 2015

Larry Crumpler gives an update on the status of Opportunity's traverse toward Marathon Valley.

Mars Exploration Rovers Update: Opportunity Closes in on 11th Anniversary and We Look Back on 2014

A.J.S. Rayl • January 07, 2015

With a wonder year of discoveries, historic feats, and bummers in the rear view mirror – and plenty of mettle to continue exploring – Opportunity ended 2014 quietly working in a temporary back-up mode, as her colleagues on Earth ramped up for the mission's marathon adventure to come in 2015.

Field Report from Mars: Sol 3875 – December 18, 2014

Larry Crumpler • December 30, 2014

Opportunity is continuing its drives along the rim of Endeavour toward Marathon Valley. Larry Crumpler tells us what to expect as the rover continues its journey.

Mars Exploration Rovers Update: Opportunity Roves from Wdowiak Ridge into Network of Fractures

A.J.S. Rayl • December 03, 2014

Last month, the Earth's longest-lived and most traveled robot on another planet drove into a network of fractures the likes of which the scientists had never seen before on Mars and wound up working there through the end of the month – and then something not completely unexpected happened.

Field Report from Mars: Sol 3848 — November 20, 2014

Larry Crumpler • November 25, 2014

Larry Crumpler returns with an update on Opportunity's recent activities, and its road ahead.

Mars Exploration Rovers Update: Opportunity Images Comet, Ducks Storm, Departs Ulysses

A.J.S. Rayl • November 04, 2014

As winds whirled and converged to the west of Endeavour Crater, Opportunity's power dropped dramatically in October, but the Mars Exploration Rover (MER) pressed on. By month's end, the robot field geologist had completed her assignments – including capturing the first close-in shot of a comet from the surface of the Red Planet – and was roving onward through the darkness, driving the mission into the 130th month of what started out more than 10-and-a-half years ago to be a 3-month tour.

Seven Mars spacecraft attempted observations of comet Siding Spring. How did they go?

Emily Lakdawalla • November 03, 2014

It's been two weeks since comet Siding Spring passed close by Mars, and six of the seven Mars spacecraft have now checked in with quick looks at their images of the encounter. I round up all the results.

A (Difficult) Day in the Solar System

Bill Dunford • October 30, 2014

After a bad day on the launch pad, some perspective.

Status update: All Mars missions fine after Siding Spring flyby

Emily Lakdawalla • October 20, 2014

All seven Mars spacecraft are doing perfectly fine after comet Siding Spring's close encounter with Mars.

Field Report from Mars: Sol 3808 — October 10, 2014

Larry Crumpler • October 15, 2014

Opportunity will become a comet flyby mission beginning in mid-October. The comet Siding Spring will zoom past Mars at a distance of about 135,000 km on October 19.

Mars Exploration Rovers Update: Opportunity Gets Extension, Returns Killer Panoramas, and Roves onto Mystery Rocks

A.J.S. Rayl • October 04, 2014

While the winds of Martian spring blew through Meridiani Planum in September, Opportunity reformatted its Flash memory then continued exploring Wdowiak Ridge on the western rim of Endeavour Crater. Even though the Flash-related issues soon returned, the robot field geologist hardly seemed to notice as it sent home two spectacular panoramas, presented the scientists with a rocky Martian mystery, and delivered yet another September to remember for the mission. And that's not all.

Field Report from Mars: Sol 3790 — September 22, 2014

Larry Crumpler • September 26, 2014

After a stand-down of activities to reformat its flash memory, Opportunity has re-commenced the long climb up this high and steep segment of the Endeavour crater rim.

Curiosity Rover Science Plan Slammed by NASA Review Panel

Casey Dreier • September 03, 2014

Senior review recommends continuing all major planetary exploration missions, but not without some changes.

Mars Exploration Rovers Update: Opportunity Suffers Unwanted Computer Reboots, Hunkers Down for Reformat

A.J.S. Rayl • September 03, 2014

After setting the new off-Earth rover distance record in July, Opportunity roved on in August, driving south along the eastern edge of Endeavour Crater's western rim to Wdowiak Ridge on its journey to the next big destination, Marathon Valley.

Comet Flyby Missions for Mars Rovers

Mark Lemmon • August 21, 2014

On October 19, the Mars rovers — like their orbiting cousins — will become comet flyby missions. Comet C/2013 A1 (Siding Spring) will pass within 140,000 km of Mars.

Field Report From Mars: Sol 3753 – August 15, 2014

Larry Crumpler • August 18, 2014

Opportunity just completed its first drives upslope on its long journey toward the crest of the highest rim segment of Endeavour crater, “Cape Tribulation.” Larry Crumpler gives us an update on what to expect next from the little rover that could.

Mars Exploration Rovers Update: Opportunity Sets Historic Distance Record and Roves On

A.J.S. Rayl • August 08, 2014

It's official: Opportunity has traveled farther and lived longer than any other vehicle on another planet, driving to a place in history with an out-of-this-world distinction no one even imagined when the robot field geologist left Earth 11 years ago.

Field Report From Mars: Sol 3737 – July 30, 2014

Larry Crumpler • August 04, 2014

Larry Crumpler updates us on the Opportunity rover, which now holds the distance record for a rover on another planet and is about to climb up its highest crater rim segment yet.

8th Mars Report: Martian habitability

Valerie Fox • July 30, 2014

Valerie Fox reports from the 8th International Conference on Mars on the habitability of the Red Planet.

Mars Exploration Rovers Update: Opportunity Nears End of Murray Ridge, Pillinger Point Christened

A.J.S. Rayl • July 03, 2014

Opportunity got off to a bumpy start in June, but the Mars Exploration Rover (MER) mission pressed on, continuing the exploration of Murray Ridge at the western rim of Endeavour Crater.

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